clone 404834 -1 retitle -1 sshfs dies with bus error on sparc reassign -1 sshfs thanks
On Thu, Dec 28, 2006 at 02:50:45PM +0100, Sebastian Fontius wrote: > The mouse works but at boot I get this: > > Kernel unaligned access at TPC[1000c9e4] ehci_hub_control+0x54c/0x68c > [ehci_hcd] > Kernel unaligned access at TPC[1000c9e4] ehci_hub_control+0x54c/0x68c > [ehci_hcd] > Kernel unaligned access at TPC[1000c9e4] ehci_hub_control+0x54c/0x68c > [ehci_hcd] > Kernel unaligned access at TPC[1000c9e4] ehci_hub_control+0x54c/0x68c > [ehci_hcd] > Kernel unaligned access at TPC[1000c9e4] ehci_hub_control+0x54c/0x68c > [ehci_hcd] > > According to http://lkml.org/lkml/2006/9/22/326 > > >> A 2.6.18-rc kernel compiled with gcc-4.1.1 will throw a few > >> unaligned accesses when I initialise USB by inserting a USB memory stick. > >> Removing the memory stick then results in PCI errors and other breakage. > > Well, I do not have any USB mass media which is dispensible and as this > may (or may not) kill data I opted not to try. > > A patch is included in http://lkml.org/lkml/2006/9/23/184: This patch looks ok, I'll push it in. > $ sshfs [EMAIL PROTECTED]:/home/smc phobos/ > Kernel unaligned access at TPC[5d3770] scm_detach_fds_compat+0x74/0x16c > Kernel unaligned access at TPC[5d37dc] scm_detach_fds_compat+0xe0/0x16c > Kernel unaligned access at TPC[5d37f8] scm_detach_fds_compat+0xfc/0x16c > Kernel unaligned access at TPC[5d3810] scm_detach_fds_compat+0x114/0x16c > Bus-Zugriffsfehler > $ ls phobos > ls: phobos: Transport endpoint is not connected There are two things here: first, the unaligned accesses in kernel. Those, as Steve pointed out, are harmless, and should not have any noticeable effect except for slight performance impact (I'll have a look at them). However, after that sshfs actually dies with bus error, which is an indication of alignment problems in sshfs itself. I'm cloning this bug report and reassigning a copy to sshfs. Please download and install the sshfs package with debugging symbols included from http://www.wooyd.org/debian/sshfs and run it under gdb as follows: $ gdb sshfs (gdb) set args [EMAIL PROTECTED]:/home/smc phobos/ (gdb) run After program terminates with bus error, type 'backtrace' at the gdb prompt and send the output to the sshfs bug report. Best regards, -- Jurij Smakov [EMAIL PROTECTED] Key: http://www.wooyd.org/pgpkey/ KeyID: C99E03CC -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
